Fildena 100 works by inhibiting the PDE5 enzyme in the body. This allows the blood vessels in the penis to relax, increasing blood flow during sexual stimulation, which helps achieve and maintain an erection. It works only in the presence of sexual arousal. Take one tablet of Fildena 100 about 30 to 60 minutes before sexual activity. It should be swallowed whole with a full glass of water. It...